Write a MeasurementSet to a random group uvfits file. More...

#include <MSFitsOutput.h>

Static Public Member Functions
static Bool	writeFitsFile (const String &fitsfile, const MeasurementSet &ms, const String &column, Int startchan=0, Int nchan=1, Int stepchan=1, Bool writeSysCal=False, Bool asMultiSource=False, Bool combineSpw=False, Bool writeStation=False, Double sensitivity=1.0, const Bool padWithFlags=false, Int avgchan=1)
	Convert a MeasurementSet to random group UVFITS.
Static Private Member Functions
static FitsOutput *	writeMain (Int &refPixelFreq, Double &refFreq, Double &chanbw, const String &outFITSFile, const MeasurementSet &rawms, const String &column, const Block< Int > &spwidMap, Int nrspw, Int startchan, Int nchan, Int stepchan, const Block< Int > &fieldidMap, Bool asMultiSource, const Bool combineSpw, const Bool padWithFlags=true, Int avgchan=1)
	Write the main table.
static Bool	writeFQ (FitsOutput *output, const MeasurementSet &ms, const Block< Int > &spwidMap, Int nrspw, Double refFreq, Int refPixelFreq, Double chanbw, Bool combineSpw, Int chanstart=0, Int nchan=-1, Int chanstep=1, Int avgchan=1)
	Write the FQ table.
static Bool	writeAN (FitsOutput *output, const MeasurementSet &ms, Double refFreq, Bool writeStation)
	Write the AN table.
static Bool	writeSU (FitsOutput *output, const MeasurementSet &ms, const Block< Int > &fieldidMap, Int nrfield, const Block< Int > &spwidMap, Int nrspw)
	Write the SU table.
static Bool	writeTY (FitsOutput *output, const MeasurementSet &ms, const Table &syscal, const Block< Int > &spwidMap, uInt nrif, Bool combineSpw)
	Write the TY table.
static Bool	writeGC (FitsOutput *output, const MeasurementSet &ms, const Table &syscal, const Block< Int > &spwidMap, uInt nrif, Bool combineSpw, Double sensitivity, Int refPixelFreq, Double refFreq, Double chanbw)
	Write the GC table.
static Bool	writeWX (FitsOutput *output, const MeasurementSet &ms)
	Write the WX table.
static void	timeToDay (Int &day, Double &dayFraction, Double time)
	Convert time to day and fraction.
static void	getStartHA (Double &startTime, Double &startHA, const MeasurementSet &ms, uInt rownr)
	Get the time and hourangle from the MS at the given row.
static void	handleAntNumbers (const MeasurementSet &ms, Vector< Int > &antnumbers)
	Discern the antenna numbers that go into UVFITS.
static Table	handleSysCal (const MeasurementSet &ms, const Vector< Int > &spwids, Bool isSubset)
	Handle the SYSCAL table.
static Int	makeIdMap (Block< Int > &map, Vector< Int > &selids, const Vector< Int > &allids)
	Determine which ids are selected in the main table (used for fields and spectral-window).
static uInt	get_tbf_end (const uInt rownr, const uInt nrow, const uInt nif, const ScalarColumn< Double > &timec, const ScalarColumn< Double > &ininterval, const ScalarColumn< Int > &ant1, const ScalarColumn< Int > &ant2, const Bool asMultiSource, const ScalarColumn< Int > &fieldid)
	Find the end of a group of rows with the same time(_centroid) (within 0.25 * ininterval(rownr)), baseline #, and, if asMultiSource, field ID.

Detailed Description

Write a MeasurementSet to a random group uvfits file.

Definition at line 50 of file MSFitsOutput.h.

Member Function Documentation

static uInt casa::MSFitsOutput::get_tbf_end	(	const uInt	rownr,
		const uInt	nrow,
		const uInt	nif,
		const ScalarColumn< Double > &	timec,
		const ScalarColumn< Double > &	ininterval,
		const ScalarColumn< Int > &	ant1,
		const ScalarColumn< Int > &	ant2,
		const Bool	asMultiSource,
		const ScalarColumn< Int > &	fieldid
	)		`[static, private]`

Find the end of a group of rows with the same time(_centroid) (within 0.25 * ininterval(rownr)), baseline #, and, if asMultiSource, field ID.

Parameters:

rownr	Row # to start from.
nrow	# of rows in the columns.
nif	# of IFs
timec	time(_centroid) col
ininterval	used to set tolerance on changes in timec.
ant1	ID of baseline's antenna 1.
ant2	ID of baseline's antenna 2.
asMultiSource	If false, treat fieldid as unattached + prone to segfault
fieldid

Returns:: Last row # with the same time, baseline, and apparent field as rownr.

Warning:: Assumes that the columns are sorted by time(_centroid), ant1, ant2 (, field, DDID).

static void casa::MSFitsOutput::getStartHA	(	Double &	startTime,
		Double &	startHA,
		const MeasurementSet &	ms,
		uInt	rownr
	)		`[static, private]`

Get the time and hourangle from the MS at the given row.

It uses the field-id and observation-id to calculate the hourangle.

static void casa::MSFitsOutput::handleAntNumbers	(	const MeasurementSet &	ms,
		Vector< Int > &	antnumbers
	)		`[static, private]`

Discern the antenna numbers that go into UVFITS.

static Table casa::MSFitsOutput::handleSysCal	(	const MeasurementSet &	ms,
		const Vector< Int > &	spwids,
		Bool	isSubset
	)		`[static, private]`

Handle the SYSCAL table.

It skips the entries not needed and sorts it in the correct order.

static Int casa::MSFitsOutput::makeIdMap	(	Block< Int > &	map,
		Vector< Int > &	selids,
		const Vector< Int > &	allids
	)		`[static, private]`

Determine which ids are selected in the main table (used for fields and spectral-window).

Parameters:

map	(Really an output here, not an input.) spwidMap[inp_id] = output_id, if inp_id is selected -1 otherwise.
selids	(Really an output here, not an input.) A list of the selected input IDs.
allids	(Really is an input, not an output!) IDs to consider.

Returns:: number of selected IDs in allids

static void casa::MSFitsOutput::timeToDay	(	Int &	day,
		Double &	dayFraction,
		Double	time
	)		`[static, private]`

Convert time to day and fraction.

static Bool casa::MSFitsOutput::writeAN	(	FitsOutput *	output,
		const MeasurementSet &	ms,
		Double	refFreq,
		Bool	writeStation
	)		`[static, private]`

Write the AN table.

static Bool casa::MSFitsOutput::writeFitsFile	(	const String &	fitsfile,
		const MeasurementSet &	ms,
		const String &	column,
		Int	startchan = `0`,
		Int	nchan = `1`,
		Int	stepchan = `1`,
		Bool	writeSysCal = `False`,
		Bool	asMultiSource = `False`,
		Bool	combineSpw = `False`,
		Bool	writeStation = `False`,
		Double	sensitivity = `1.0`,
		const Bool	padWithFlags = `false`,
		Int	avgchan = `1`
	)		`[static]`

Convert a MeasurementSet to random group UVFITS.

Parameters:

fitsfile	Output filename
ms	input
column	specifies which "data" column to write ("observed", "calibrated", "model")
startchan	1st channel
nchan	# of channels
stepchan	# of channels to stride by
writeSysCal	whether to write the system calibration table
asMultiSource	If true a multi-source UVFits file is written.
combineSpw	If true it attempts to write the spectral windows as IFs. This is necessary for many aips tasks, and difmap.
writeStation	If true uses pad instead of antenna names.
sensitivity
padWithFlags	If true and combineSpw==true, fill spws with flags as needed to fit the IF structure. Does not yet support spws with different shapes.

static Bool casa::MSFitsOutput::writeFQ	(	FitsOutput *	output,
		const MeasurementSet &	ms,
		const Block< Int > &	spwidMap,
		Int	nrspw,
		Double	refFreq,
		Int	refPixelFreq,
		Double	chanbw,
		Bool	combineSpw,
		Int	chanstart = `0`,
		Int	nchan = `-1`,
		Int	chanstep = `1`,
		Int	avgchan = `1`
	)		`[static, private]`

Write the FQ table.

If combineSpw is True, all spectral-windows are written in one row of the FITS table.

static Bool casa::MSFitsOutput::writeGC	(	FitsOutput *	output,
		const MeasurementSet &	ms,
		const Table &	syscal,
		const Block< Int > &	spwidMap,
		uInt	nrif,
		Bool	combineSpw,
		Double	sensitivity,
		Int	refPixelFreq,
		Double	refFreq,
		Double	chanbw
	)		`[static, private]`

Write the GC table.

static FitsOutput* casa::MSFitsOutput::writeMain	(	Int &	refPixelFreq,
		Double &	refFreq,
		Double &	chanbw,
		const String &	outFITSFile,
		const MeasurementSet &	rawms,
		const String &	column,
		const Block< Int > &	spwidMap,
		Int	nrspw,
		Int	startchan,
		Int	nchan,
		Int	stepchan,
		const Block< Int > &	fieldidMap,
		Bool	asMultiSource,
		const Bool	combineSpw,
		const Bool	padWithFlags = `true`,
		Int	avgchan = `1`
	)		`[static, private]`

Write the main table.

Parameters:

refPixelFreq
refFreq
chanbw
outFITSFile
rawms
column	data column to write
spwidMap	spwidMap[inp_spw] = output_spw, if inp_spw is selected -1 otherwise.
nrspw	# of selected spws.
startchan	First channel
nchan	# of channels
stepchan	channel stride
fieldidMap	fieldidMap[inp_fld] = output_fld, if inp_fld is selected -1 otherwise.
asMultiSource	If true, write a multisource UVFITS file.
combineSpw	If true, export the spectral window(s) as IF(s).
padWithFlags	If true && combineSpw==true, pad the spws with flags as necessary to fit the IF structure.

static Bool casa::MSFitsOutput::writeSU	(	FitsOutput *	output,
		const MeasurementSet &	ms,
		const Block< Int > &	fieldidMap,
		Int	nrfield,
		const Block< Int > &	spwidMap,
		Int	nrspw
	)		`[static, private]`

Write the SU table.

static Bool casa::MSFitsOutput::writeTY	(	FitsOutput *	output,
		const MeasurementSet &	ms,
		const Table &	syscal,
		const Block< Int > &	spwidMap,
		uInt	nrif,
		Bool	combineSpw
	)		`[static, private]`

Write the TY table.

static Bool casa::MSFitsOutput::writeWX	(	FitsOutput *	output,
		const MeasurementSet &	ms
	)		`[static, private]`

Write the WX table.

The documentation for this class was generated from the following file:

casacore/msfits/MSFits/MSFitsOutput.h

Static Public Member Functions

Static Private Member Functions

Detailed Description

Member Function Documentation